Because of the Thanksgiving holiday in the U.S., TI E2E™ design support forum responses may be delayed from November 25 through December 2. Thank you for your patience.
Part Number: UCC2800-EP Tool/software: Hi There,
I wanted to turn off the Output DRV voltage of the IC UC2800-EP by pulling down the COMP Pin voltage to the ground using the Input supply voltage(18-80V) and BJT logic and NOT with any Opamp Circuitry as…
Part Number: UCC2800 Tool/software: Perhaps a quick edit of this document would be prudent. This is what I found on Page 5:
Assume that you expect your supply to operate in a −40°C to 85°C environment. From , you know that you need to…
Part Number: UCC2800 Hello,
I am having a fatal LTSpice error using the UCC2800 model. The error in the log file is the following :
Fatal Error: Analysis: Time step too small; time = 0.00123961, timestep = 1.25e-018: trouble with u1:drive:_nmos-instance…
I understand Method 2 (direct application of sync signal pulse train to RC pin). Thanks for explaining that.
I have the following questions regarding Method 1:
1) I interpret that a single pulse (≥1V, ≥100ns) is required to be applied to synchronize the…
Part Number: UCC2800 Hello Guys,
Good day.
Our customer have the following inquiries on UCC2800 which we are hoping you could help us with.
1. I see that there are four different suffixes for the Part Number UCC2800 (namely N, D, J and L). What are the…
Part Number: UCC2800 Hi expert,
I have a question for internal CS comparator. We can see from below block diagram. There have two current sense comparator internal, which one is 1.5V threshold, another one is 1V threshold. How these two comparator work…
Part Number: UCC2800 We are looking to redesign a power source that will regulate to a constant 35A with the load ranging from 0 to 1ohms. The duty cycle is low only requiring 1S of ON time with 6S OFF (average usage will be 30ms ON). We currently use…
Part Number: UCC2803 Hii Everyone,
For the reference design given in the datasheet of UCC2803 on page no. 26, how can we calculate the following parameters...
Rcs, Rz, R_FBU, R_FBB, R_AC, R_CSF, R_B, R_LED, R_RAMP, C_RAMP, R_T, R_FB2, CT.
Just suggest…
Part Number: UCC2800 Hello,
I am using a UCC2800D PWM controller as a buck converter controller in a battery charger; i need accurate information about the maximum allowable duty cycle in order to specify to our customer he minimum difference between the…
Part Number: UCC2800-EP Other Parts Discussed in Thread: UCC2800 Hi,
We intend to use UCC2800 just for its internal overcurrent detection feature. Now, we understand that for this feature to work the design has to ensure that the voltage at CS pin has…
